Deinandra bacigalupii
Encyclopedia
Deinandra bacigalupii is a rare species of flowering plant in the aster family
known by the common names Livermore tarplant and Livermore moonshine. It is endemic to Alameda County, California
, where there are only about five known occurrences around Livermore
. It grows in open areas with alkali soils
, such as alkali sinks and meadows. This plant was previously included within Deinandra increscens
ssp. increscens, but it was separated and elevated to species level in 1999.
This is an annual herb producing a solid stem 10 to 40 centimeters tall. The hairy, glandular leaves have narrow linear or lance-shaped blades with smooth or lobed edges. The inflorescence
is a cluster of flower heads
each surrounded by the upper bract
s on the stem branches. The head contains 6 to 9 lobed yellow ray florets each a few millimeters long and several yellow disc florets with yellow or brown anthers
.
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...
known by the common names Livermore tarplant and Livermore moonshine. It is endemic to Alameda County, California
Alameda County, California
Alameda County is a county in the U.S. state of California. It occupies most of the East Bay region of the San Francisco Bay Area. As of the 2010 census it had a population of 1,510,271, making it the 7th most populous county in the state...
, where there are only about five known occurrences around Livermore
Livermore, California
Livermore is a city in Alameda County. The population as of 2010 was 80,968. Livermore is located on the eastern edge of California's San Francisco Bay Area....
. It grows in open areas with alkali soils
Alkali soils
Alkali, or alkaline, soils are clay soils with high pH , a poor soil structure and a low infiltration capacity. Often they have a hard calcareous layer at 0.5 to 1 metre depth. Alkali soils owe their unfavorable physico-chemical properties mainly to the dominating presence of sodium carbonate...
, such as alkali sinks and meadows. This plant was previously included within Deinandra increscens
Deinandra increscens
Deinandra increscens is a species of flowering plant in the aster family known by the common name grassland tarweed. It is endemic to California, where it is common and widespread, occurring in many types of habitat....
ssp. increscens, but it was separated and elevated to species level in 1999.
This is an annual herb producing a solid stem 10 to 40 centimeters tall. The hairy, glandular leaves have narrow linear or lance-shaped blades with smooth or lobed edges. The inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
is a cluster of flower heads
Head (botany)
The capitulum is considered the most derived form of inflorescence. Flower heads found outside Asteraceae show lesser degrees of specialization....
each surrounded by the upper bract
Bract
In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis, or cone scale. Bracts are often different from foliage leaves. They may be smaller, larger, or of a different color, shape, or texture...
s on the stem branches. The head contains 6 to 9 lobed yellow ray florets each a few millimeters long and several yellow disc florets with yellow or brown anthers
Stamen
The stamen is the pollen producing reproductive organ of a flower...
.